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The decision to have a solar energy installation at your home or business is a wise one. Many factors need to be considered before you proceed. How much will it cost?  How large of a solar unit is needed to supply all of your energy needs? Who is qualified to install it? Do you need to be connected to the local grid? ? How long before you recuperate the cost?

The cost of your solar system will be determined by the amount of power you wish to generate and where you are located.  The solar modules you install will be about 40 to 50% of your overall cost. In 2003 the cost per kWt was between $8000 and $12000 per kWp installed. These cost have come down some with the development and advances of thin film cells but this is just to give you a rough idea. For a firm cost, your local market will decide the actual price. As for how large of a unit you would need depends on your power consumption and where you live. Look at your past electrical bills over the past few years and you will have a good idea of your power consumption. The sun’s rays also are more intense the closer you are to the equator. A good example is a solar cell that is located in Southern California can produce twice the power of a solar cell placed in Northern Germany.

Remember only certified licensed installers can legally install your systems. Another reason to get a licensed installer is that all states but Arkansas has an incentive program for the proper installation and use of solar energy.

Some of the incentive programs offered by states require that your solar power be connected to the local grid. Before you decide on this matter, check with your states program and know your power consumption and the forecasted power output of your new system.

Most homeowners can recuperate the cost of the solar power installation in about 20 years. Know your system and do your research to help you decide.